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cubelinux-kernel/Documentation/devicetree/bindings/mailbox/riscv,sbi-mpxy-mbox.yaml
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Greg Kroah-Hartman 598cf27219 Linux 6.19.3
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Luna Jernberg <droidbittin@gmail.com>
Tested-by: Ronald Warsow <rwarsow@gmx.de>
Tested-by: Justin M. Forbes <jforbes@fedoraproject.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-02-19 16:33:27 +01:00

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1.5 KiB
YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mailbox/riscv,sbi-mpxy-mbox.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: RISC-V SBI Message Proxy (MPXY) extension based mailbox
maintainers:
- Anup Patel <anup@brainfault.org>
description: |
The RISC-V SBI Message Proxy (MPXY) extension [1] allows supervisor
software to send messages through the SBI implementation (M-mode
firmware or HS-mode hypervisor). The underlying message protocol
and message format used by the supervisor software could be some
other standard protocol compatible with the SBI MPXY extension
(such as RISC-V Platform Management Interface (RPMI) [2]).
===========================================
References
===========================================
[1] RISC-V Supervisor Binary Interface (SBI) v3.0 (or higher)
https://github.com/riscv-non-isa/riscv-sbi-doc/releases
[2] RISC-V Platform Management Interface (RPMI) v1.0 (or higher)
https://github.com/riscv-non-isa/riscv-rpmi/releases
properties:
compatible:
const: riscv,sbi-mpxy-mbox
"#mbox-cells":
const: 2
description:
The first cell specifies channel_id of the SBI MPXY channel,
the second cell specifies MSG_PROT_ID of the SBI MPXY channel
required:
- compatible
- "#mbox-cells"
additionalProperties: false
examples:
- |
mailbox {
compatible = "riscv,sbi-mpxy-mbox";
#mbox-cells = <2>;
};